What is dynamic topology?
Every sculpting tool has to answer one question: where does the geometry come from when you sculpt detail the mesh can't hold? Dynamic topology is one of the two big answers — and knowing when to use it versus multiresolution subdivision is one of the most useful things a sculptor can learn.
The short answer
Dynamic topology (dyntopo) retessellates the mesh under the brush as you sculpt, adding triangles exactly where you're working and only there. It's ideal for concepting and for pulling new forms — horns, branches, handles — out of a surface. Multiresolution subdivision instead subdivides the whole mesh in switchable levels, which preserves clean topology and lets you revisit broad forms; production sculpts typically concept with dyntopo, then remesh and finish with multires.
How dynamic topology works
As a brush stroke crosses the surface, the sculpting engine measures the edges under the brush against a target detail size. Edges that are too long are split (and, in most implementations, overly dense areas can be collapsed), so the mesh is rebuilt locally, stroke by stroke, at exactly the density the current brush needs. Sculpt a fine crease across a coarse plane and the plane gains geometry along the crease — nowhere else.
The cost is that topology becomes unstructured: triangle soup rather than clean quad loops, with no subdivision levels to step between. UVs and vertex data generally don't survive retessellation either, which is why dyntopo belongs early in the workflow, before anything downstream depends on the mesh's structure.
Dyntopo vs multiresolution subdivision
Multiresolution subdivision divides the entire mesh evenly and keeps every level live — you sculpt broad form at level 1 and pore detail at level 5, and can drop back down at any time to fix proportion while the fine detail follows along. The topology stays structured, which is what baking, texturing, and animation want. Its limitation is the inverse of its strength: resolution goes everywhere, so an ear and the flat of a skull get the same triangle budget.
Dyntopo spends triangles only where the sculpt needs them and lets you pull entirely new forms out of a surface without pre-planning the geometry — but it sacrifices levels and structure to do it. That's why the common production pattern is: block and concept with dyntopo while the design is fluid, then remesh to clean topology and rebuild multiresolution levels for the finishing passes.
Where remeshing fits in
Remeshing rebuilds the whole surface in one operation rather than continuously. A voxel remesh (the approach behind ZBrush's DynaMesh) converts the sculpt into a volume and re-skins it at uniform density — perfect for restoring an even surface after heavy stretching, or for fusing merged shapes into one solid. A quad remesh goes further and generates flow-following quad topology, the form you want before final detailing or hand-off to animation.
The three tools form one resolution toolkit: dyntopo for local, stroke-level density; voxel remesh for periodic clean-up; multires for structured, level-based finishing. Mold — Mixos's browser sculpting app — implements all three on the GPU, so the workflow runs in a browser tab.
Frequently asked questions
What does dynamic topology do?
It rebuilds the mesh under your brush as you sculpt, splitting edges so the surface always has enough triangles for the detail you're drawing — without densifying the rest of the model.
Is dyntopo the same as DynaMesh?
No. Dyntopo retessellates continuously under the brush during the stroke; DynaMesh is a voxel remesh you trigger periodically to rebuild the whole surface at uniform density. ZBrush's stroke-level equivalent of dyntopo is Sculptris Pro.
Should I sculpt with dyntopo or multires?
Use dyntopo while designing — it's free-form and spends geometry only where you work. Switch to a remeshed base with multiresolution levels for finishing, so you keep clean topology and can still adjust broad forms late.
Does dynamic topology destroy UVs?
Generally yes — retessellation replaces the vertices the UVs were attached to. Sculpt first, then unwrap when the surface is final. Mold handles this by generating fresh UVs when you send a sculpt to Studio for texturing.
Can I use dynamic topology in a browser?
Yes — Mold runs dynamic topology, voxel and quad remeshing, and multiresolution subdivision on the GPU via WebGPU, in an ordinary browser tab.
Try dynamic topology on a real mesh — Mold tessellates under your brush on the GPU, right in the browser.